Roy's bravado key to successful Test transition - Collingwood

Jason Roy's "bravado" will help transfer his form from 50-over cricket to the Test format, according to England fielding coach Paul Collingwood.

Roy was one of the heroes of England's triumphant Cricket World Cup campaign, contributing to the key run out of Martin Guptill from the final ball of the Super Over as the hosts defeated New Zealand courtesy of a superior boundary count at the end of an epic final at Lord's on Sunday.

And the opener's batting was a major factor throughout the tournament, scoring his 443 runs from just seven innings at a strike rate of more than 115, setting the tone for England with a typically belligerent approach alongside Jonny Bairstow.

Roy's form has earned a maiden Test call-up as England prepare to face Ireland over four days next week before the start of the Ashes against Australia on August 1, and Collingwood has no doubts the Surrey batsman's coursing confidence will aid his adaptation to the longer form.

Ian Bell, a former Ashes winner alongside Collingwood, echoed his old team-mate's sentiments.

"I was really impressed actually at times with Jason Roy because even though he hasn't batted at the top of the order for Surrey, I thought there were times at the World Cup when the ball did move around and technically he played as well as anyone," Bell told Omnisport.

"He has an opportunity… when you face Australia in the Ashes it's high pressure and they've got one of the best bowling attacks in world cricket right now. It will be a challenge but there's no doubt he's got the ability to do something very special."